National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Fire Weather Concerns West; Thunderstorms in the Upper Midwest

Dry and breezy conditions will enhance fire weather concerns across portions of the northern and central High Plains through Saturday, where fuels remain largely receptive. Severe thunderstorms are possible across portions of central Nebraska to the Upper Midwest this Friday afternoon into tonight. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 30.04 in (1016.5 mb)
Dewpoint 56°F (13°C)
Visibility 5.00 mi
Last update 11 Sep 4:51 am CDT
Extended Forecast for

Round Lake Park IL

  • Today

    Today: Sunny, with a high near 78. Light south wind becoming southeast 5 to 10 mph in the morning.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. East southeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 84. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 56. North northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 56 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 75. North wind 5 to 10 mph.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 78. Light south wind becoming southeast 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 61. East southeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Saturday
Mostly sunny, with a high near 84. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 56. North northwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 75. North wind 5 to 10 mph.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 56.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 65.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 56.
Wednesday
A chance of showers. Mostly cloudy, with a high near 72.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 58.
Thursday
A chance of showers. Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Park IL
 42.33°N 88.05°W
Last Update:
3:10 am CDT Sep 11, 2026
Forecast Valid:
5am CDT Sep 11, 2026-6pm CDT Sep 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation